Discoveries

What is a Pliosaur?
These fossils come from an Inland Sea in the Late Cretaceous that covered a large portion of north america around 90 million years ago. The inland sea deposited a formation found in the western USA known as the Mancos, or Tropic Shale. Numerous types of fossils are found in this formation including, Baculites, Ammonites, Pliosaurs, Turtles, numerous species of Sharks, and a wide variety of crustaceans just to name a few. Below are some of the fossils I've come across in the Tropic.